CallCard vs Linq

CallCard is a web-based digital business card with visitor messaging, a built-in CRM, and field-level privacy controls. Visitors can message, call, save, share, upload files, or open a map from a card without an app or visitor signup. Card owners choose visibility for each field. A dashboard tracks visits, replies, and collected contacts with timestamps, and contacts can be grouped. Cards can display timezone-aware availability. The product also supports estimates, quotes, invoices, payment tracking, overdue reminders, and a reusable service catalog. The free plan costs nothing and includes two cards, one custom URL per card, CRM and collections, privacy controls, messaging and file uploads, and a QR code with the owner’s logo. Pro costs $9.90 a month or 95 USD per year, with 10% GST for AU customers; it includes five cards and 100MB file uploads retained for 30 days. New accounts start with a 90-day Pro trial without a credit card. Teams is marked coming soon, with custom pricing listed.

Linq is a communications platform and API for businesses, software platforms, and developers. It supports sending and receiving messages and making calls across iMessage, RCS, SMS, and voice, with automatic protocol selection and fallback for supported messaging channels. Rich messaging includes media, group chats, reactions, message effects, typing indicators, polls, and real-time webhooks. Listed use cases include customer support, sales engagement, appointment reminders, order notifications, and AI agents. Developers receive API documentation and CLI access; Linq says a first workflow can be built in less than five minutes. The service advertises 99.95% uptime and latency below 120 ms. Linq states that it holds SOC 2 Type I and Type II certifications, encrypts sensitive data stores at rest, and restricts privileged access to encryption keys. The Hobby plan costs nothing for up to 20 contacts. Pro starts at $260 a month; Enterprise pricing is custom. Android, iOS, web, and API access are listed.